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AX3522 - 3A Synchronous Step-Down Converter

Description

The AX3522 is a 1MHz constant frequency current mode PWM step-down converter.

It is ideal for portable equipment requiring very high current up to 3A from single-cell Lithium-ion batteries while still achieving over 90% efficiency during peak load conditions.

Features

  • 2.8V to 5.5V Input Voltage Range Output Voltages from 0.8V to VIN High Efficiency: Up to 94% 1MHz Constant Frequency Operation With power saving mode Up to 3A Output Current No Schottky Diode Required Current Mode Operation for Excellent Line and Load Transient Response Current limit and thermal shutdown protection Short Circuit Protect (SCP) Build-in Soft Start function SOP-8L-EP and TDFN-8 Pb-Free packages VÛm w`R.
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Datasheet preview – AX3522

Datasheet Details

Part number AX3522
Manufacturer AXElite
File Size 615.88 KB
Description 3A Synchronous Step-Down Converter
Datasheet download datasheet AX3522 Datasheet
Additional preview pages of the AX3522 datasheet.

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Full PDF Text Transcription

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AX3522 1MHz, 3A Synchronous Step-Down Converter  GENERAL DESCRIPTION The AX3522 is a 1MHz constant frequency current mode PWM step-down converter. It is ideal for portable equipment requiring very high current up to 3A from single-cell Lithium-ion batteries while still achieving over 90% efficiency during peak load conditions. The AX3522 also can run at 100% duty cycle for low dropout operation, extending battery life in portable systems while light load operation provides very low output ripple for noise sensitive applications. The AX3522 can supply up to 3A output load current from a 2.8V to 5.5V input voltage and the output voltage can be regulated as low as 0.8V. The high switching frequency minimizes the size of external components while keeping switching losses low.
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